Resin composition for high water resistance sheet molding compound, high water resistance sheet molding compound, and high water resistance bathtub

A technology of sheet molding compound and resin composition, which can be used in bathtubs, showers, showers, etc., can solve the problem of difficult to meet the requirements of water resistance, and achieve the effect of good water resistance

Active Publication Date: 2012-10-24
芜湖科逸建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the current sheet molding compound is used as an integral bathroom bathtub, its water resistance is difficult to meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment provides a resin composition for a highly water-resistant sheet molding compound, which is prepared by mixing the following raw materials in parts by weight:

[0033] 80 parts of isophthalic unsaturated resin (containing 0.0015%~0.0018% of carboxyl groups);

[0034] 20 parts of polymethyl methacrylate;

[0035] Aluminum hydroxide micropowder (particle size below 10 microns) 30 parts;

[0036] 20 parts of chopped glass fiber;

[0037] 1 part of tert-butyl peroxybenzoate;

[0038] Zinc stearate 4 parts;

[0039] 6 parts of PE powder;

[0040] Magnesium oxide 1.2 parts.

Embodiment 2

[0042] This example provides a resin composition for a highly water-resistant sheet molding compound, which is obtained by mixing the following raw materials in parts by weight and then adding 8 parts of styrene to adjust the viscosity:

[0043] Vinyl resin (carboxyl group containing 0.0014%~0.0019%) 80 parts;

[0044] 20 parts of polymethyl methacrylate;

[0045] Aluminum hydroxide micropowder (particle size below 10 microns) 160 parts;

[0046] 25 parts of chopped glass fiber;

[0047] 1.2 parts of tert-butyl peroxybenzoate;

[0048] 0.1 part of polymerization inhibitor;

[0049] Zinc stearate 4 parts;

[0050] 8 parts of PE powder;

[0051] Magnesium oxide 1.2 parts.

Embodiment 3

[0053] This example provides a resin composition for a highly water-resistant sheet molding compound, which is obtained by mixing uniformly the following raw materials in parts by weight, and then adding 10 parts of styrene to adjust the viscosity:

[0054] Vinyl resin (carboxyl group containing 0.0014%~0.0019%) 80 parts;

[0055] 20 parts of polymethyl methacrylate;

[0056] Aluminum hydroxide micropowder (particle size below 10 microns) 180 parts;

[0057] 40 parts of chopped glass fiber;

[0058] 2 parts of tert-butyl peroxybenzoate;

[0059]0.2 part of polymerization inhibitor;

[0060] Zinc stearate 4 parts;

[0061] 9 parts of PE powder;

[0062] Magnesium oxide 1 part.

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Abstract

The invention discloses a resin composition for a high water resistance sheet molding compound, a high water resistance sheet molding compound, and a high water resistance bathtub. The resin composition is prepared by mixing 60-90 parts by weight of an unsaturated polyester resin, 10-40 parts by weight of a low shrink agent, 30-180 parts by weight of an inorganic filler, 20-40 parts by weight of short glass fibers, 1-2 parts by weight of an initiator, 2-10 parts by weight of an internal release agent, 1-10 parts by weight of a surface modification agent, 0.5-2 parts by weight of a thickening agent, 0-1 part by weight of a polymerization inhibitor, and 0-10 parts by weight of styrene, wherein the unsaturated polyester resin is a composition comprising one or a plurality materials selected from an o-phenyl type unsaturated resin, a meta-phenyl type unsaturated resin, an epoxy vinyl ester unsaturated resin and a vinyl resin, the unsaturated resin contains carboxyl groups, and the amount of the carboxyl groups is 0.001-0.002% of the total weight of the resin. The high water resistance bathtub of the present invention has excellent water resistance performance.

Description

technical field [0001] The invention relates to a resin composition for sheet molding compound, a sheet molding compound containing the resin composition, and a highly water-resistant bathtub made of the sheet molding compound. Background technique [0002] SMC is the English abbreviation of Sheet Molding Compound (Sheet Molding Compound). , internal release agent, thickener, color paste, initiator, etc.) The upper and lower sides are sheet materials covered with polyethylene film. When the sheet molding compound is formed, the prepared sheet is weighed, cut, and removed. The film is placed in a mold at a specific temperature, and after a certain high pressure is applied, the product can be obtained. It first appeared in Europe in the 1960s, and then the United States, Japan and other countries successively developed this process. After more than 40 years of development, it has been widely used in automobiles, electronics, construction and other industries. Especially in r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/01C08F2/44C08K7/14C08K3/22C08L67/00A47K3/02
Inventor 王丽梅胡福涛陈忠义
Owner 芜湖科逸建材有限公司
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